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Una's A7V VRMAir duct mod
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Date Posted: Dec 29 2000
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Author: Unaclocker
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Posting Type: Article
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Category: Air and Heat Pipes
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Page: 1 of 1
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Article Rank:No Rank Yet
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Note: This is a legacy article, imported from old code. Due to this some items on the page may not function as expected. Links, Colors, and some images may not be set correctly.
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Una's A7V VRMAir duct mod By: Unaclocker
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Here's the problem, I've got an Asus A7V, modded to give me more voltage, and I'm watercooling. The mod gives me more voltage, but it stresses the voltage regulators a lot more than a normal CPU would. The watercooling takes away the fan that is normally blowing on the voltage regulators - the CPU fan. So I felt that I should do something to protect the voltage regulators, if not to improve stability, at least to prolong their life. Well, let's see a picture of the situation before I started, with the fan already in place.
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Yeah, it's a little blurry, my camera really wasn't meant to take this kind of picture. Anyway. On the left side of this picture you'll see the fan, with a filter on it, and below that (or to the right of it in the picture) you'll see the voltage regulator daughter board. What I needed was a way to direct the air down and over the voltage regulators. I placed a thermistor on the transistors on the VR board, and found one of them at 145f, and many others at 100+. So I found a box made of a suitable poster board like material, and cut it up.
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The Problem ( But Dig the Blorbage :)
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The incredibly space age material used for this duct
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Here's what I came up with, fold the two sides down, and bend the lower part downward, and we end up with a great duct, that looks like the pic below.
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Ok, here you see how it works, it ended up with a nice gentle arc to prevent causing too much back pressure, which seriously decreases airflow. I used packing tape to hold it all together, and to hold it onto the case. The best part is, I could take my cardboard "prototype" and use it as a template to make a sheet metal version of this duct, if I were so inclined.
The results? That same 145f transistor is now at 95f. Granted, this isn't as accurate of a reading as Joe's Temp gun, but the temps are pretty good, I used the same temp probe both times. The fan shown in the first picture is not the one I ended up using, I ended up using the YS Tech fan from my old FOP32 heat sink, I wired the fan into my fan bus, but still ran the rpm wire back to the motherboard so that I could keep track of the speed of the fan.
Also, the hole for the fan, I put that in in Project Little Stealth.
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That about wraps this article up, If you have Questions please post them on the ProCooling Forums (recommended), or Email UnaClocker directly.
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Random Forum Pic |
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From Thread: Chieftec big tower wc'ing in progress |
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So why the hell not? |
I agree!
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67%
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What?
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17%
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Hell NO!
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0%
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Worst Poll Ever.
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17%
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Total Votes:18Please Login to Vote!
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